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Showing posts with label Brake Booster. Show all posts
Showing posts with label Brake Booster. Show all posts

Sunday, September 5, 2010


Before You Start Bike Trials

Here are some tips or lessons you will need to know before you take on bike trials. You would have probably learnt it as you go along, but there is no harm to know about it now, to get a head start and cut short the leaning curve... :-)


One finger braking is a MUST if you want to take on this sport. Whether you are using hydraulic brakes or cable brakes. It is safer and you will have a better grip on the handlebar. Btw, if you have short index fingers, most "good" brake levers are adjustable to suit your fingers' reach.


Pedals with good grip are also a MUST. Depending on the sole on your shoe, you must feel that when you lightly rest your shoe on the pedal, you will get a good grip. This will prevent your shoe from slipping off during critical moments... :-)


Brake setup is critical, especially the rear wheel brakes. Grind the rim and get a brake booster (if you are using rim brakes). There is no such thing as "too much braking" in trials... LOL.


Depending on the pedals, you can quickly wear down the sole and side of your shoes. So far, I have not found a pair that can last me a year... LOL. So get a pair that you are comfortable with. Personally, I prefer a flexible sole.


I am trying out this new pair of Puma. The sole is flat and slightly hard. I hope the sole will get softer as I ride more.


Without a shin guard? You are asking for major grief! If you are using pedals with metal studs, I seriously suggest you get a nice pair of shin guard.


What can I say? Depending on the type of grips on your handlebar, gloves are essential for extra protection and grip. Some riders do not like gloves... but like I said, it really depends on the grips on your handlebar. Due to my sweaty palms, I need to use it for protection and better grip :-)


You can do without the rest.... BUT you cannot do without a helmet!! Can never say this or hear this enough! Never ride trials without helmet!!!

Most of the time, new riders (including myself during that time) will just jump into learning the basic trial techniques without being aware of how important some of the safety preparations are.

I wish I had started off with knowing some of the above tips, instead of learning while I went along. Would have saved me some grief... LOL.



Sunday, October 25, 2009


Installing a Rear Brake Booster on my Echo Pure

One of the first things I learned when I started BikeTrials was that braking was ultra important, especially the rear brakes. When I first bought the 26" Echo Pure trial bike, I discovered that when I used the rear brakes, the braking does not feel solid and tend to slip.

Then I tried grinding the rims, but still on more than a few occasions I fell over backwards a couple of times when I tried the rear wheel stand or pedal hops.

The reason the braking was not good was that the "seat stays" of the frame, where the brakes mounting were located (see bike parts illustration), will flex and expand each time the rim brakes were used. When the "seat stays" flex, the brakes will loose grip.

Since then I had been on a look out for a brake booster for my rear rim brakes. I tried looking in KL and Singapore and could not find any. Actually, I found some BMX brake boosters, but the fitting and screw holes did not fit. Some of my friends in Singapore told me that I could make my own. For a while, together with Sean, we were going to see if we could get some workshop to help fashion a brake booster of our own design... LOL

Anyway, when I rode with Wong Xu for the first time a couple of months back, I told him about my braking problem. Wong Xu told me that he had an old Echo Brake Booster he did not use any more and that I could have it. I offered to pay him for it but he insisted that I kept it... LOL.


The Echo brake booster.

Happily, I went home and tried installing the brake booster immediately... BUT... I found that I could not install the booster due to the rim brake bracket mounting getting in the way. Disappointed, I told Wong Xu the problem the next time we rode together.

Then he taught me a neat trick. He told me to get some old chain and dismantled them, then keep the chain rollers. The idea was to use the "rollers" as spacers so that the brake booster can be mounted above the bracket. Cool!


This photo shows the chain rollers that I needed.

The next challenge was to find the screws long enough and will fit exactly to hold everything together. The following photos shows the brake boosters installed on my bike.


Placing two rollers on each side, I managed to install the brake booster above the rim brakes mounting bracket. All in all, I used 4 chain rollers to do the job :-)


The brake booster after installation.


View of the brake booster from the top. This was the best I could do to align it properly.

After installing the brake booster, my Echo Pure felt and rode differently! I could feel the extra rigidness in the braking. Immediately, I felt more confident in the braking and have not look back since... LOL.